CREATE ENDPOINT MyEndpoint?
STATE = STARTED
AS HTTP (
AUTHENTICATION = (INTEGRATED),
PATH = '/sql/myendpoint',
PORTS = (CLEAR) )
FOR SOAP (
BATCHES = ENABLED,
WSDL = DEFAULT
)

http://localhost/sql/myendpoint?wsdl.

function SendBatchRequest( strServerName, strUrlPath, strQuery )
{
var objXmlHttp = null; 
var strRequest = ""; 
objXmlHttp = new ActiveXObject( "microsoft.xmlhttp" ); 
objXmlHttp.open( "POST", "http://" + strServerName + strUrlPath, false ); 
objXmlHttp.setrequestheader( "Content-Type", "text/xml" ); 
objXmlHttp.setRequestHeader( "Host", strServerName ); 
strRequest = "＜SOAP-ENV:Envelope xmlns:SOAP-ENV='http://schemas.xmlsoap.org/soap/envelope/'
xmlns:sql='http://schemas.microsoft.com/sqlserver/2004/SOAP'＞
＜SOAP-ENV:Body＞
＜sql:sqlbatch＞
＜sql:BatchCommands＞" + strQuery + "＜/sql:BatchCommands＞
＜/sql:sqlbatch＞
＜/SOAP-ENV:Body＞
＜/SOAP-ENV:Envelope＞"; 
objXmlHttp.send( strRequest ); 
if( objXmlHttp.status == 200 )
return objXmlHttp.responseXML.xml; 
else
return ""; 
}
var response = SendBatchRequest( 'localhost', 
'/sql/myendpoint', 'Select * from sys.http_endpoints' )